Home / 811,295.20-1,119,621.24-467,122.55

Finding the Fourth Proportional to 811,295.20, 1,119,621.24 and 467,122.55

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Solution

The fourth proportional to 811,295.20, 1,119,621.24 and 467,122.55 is: 644,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,295.20 : 1,119,621.24 = 467,122.55 : x
  2. Step 2: Convert to fraction form
    811,295.20/1,119,621.24 = 467,122.55/x
  3. Step 3: Cross multiply
    811,295.20x = 1,119,621.24 × 467,122.55
  4. Step 4: Simplify right side
    811,295.20x = 523,000,331,462.02
  5. Step 5: Solve for x
    x = 523,000,331,462.02/811,295.20
  6. Step 6: Final answer
    x = 644,648.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.